Changeset 973be64e in mainline for generic/include/console/chardev.h

Timestamp:

2005-12-10T00:19:57Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

fcfac420

Parents:

705b4149

Message:

Added generic exc_register/exc_dispatch functions,
copied from ia32 architecture. Currently only mips32 uses them.

The chardev_t can now be both input & output device (was
needed for serial driver).

Broken other architectures - ia64, sparc, powerpc will not compile.

Mips32 supports input on all msim, gxemul, indy(tested emulation
in gxemul, loses characters), simics. Simics serial line
is done using polling, I was unable to make it produce
an interrupt when the key was pressed.

File:

• generic/include/console/chardev.h (modified) (2 diffs)

generic/include/console/chardev.h

@@ -37 +37 @@
 #define CHARDEV_BUFLEN 512
 
+struct chardev;
+
 /* Character device operations interface. */
 struct chardev_operations {
-        void (* suspend)(void);         /**< Suspend pushing characters. */
-        void (* resume)(void);          /**< Resume pushing characters. */
+        void (* suspend)(struct chardev *);/**< Suspend pushing characters. */
+        void (* resume)(struct chardev *); /**< Resume pushing characters. */
+        /** Write character to stream */
+        void (* write)(struct chardev *, char c);
 };
 
@@ -47 +51 @@
 /** Character input device. */
 struct chardev {
+        char *name;
+        
         waitq_t wq;
         spinlock_t lock;                /**< Protects everything below. */
         __u8 buffer[CHARDEV_BUFLEN];
         count_t counter;
+        chardev_operations_t *op;       /**< Implementation of chardev operations. */
         index_t index;
-        chardev_operations_t *op;       /**< Implementation of chardev operations. */
+        void *data;
 };
 
-extern void chardev_initialize(chardev_t *chardev, chardev_operations_t *op);
+extern void chardev_initialize(char *name,
+                               chardev_t *chardev, 
+                               chardev_operations_t *op);
 void chardev_push_character(chardev_t *chardev, __u8 ch);